Ah, the imperfect crime. (via)
The repeated looks towards the door to make sure his owner is out of sight is a clear sign this thieving dog understands that what he's doing is wrong. He also seems to be under the mistaken impression that, since his owner can't see him, he somehow can't be heard jumping up to steal food, even though he's making so much noise that the neighbors are probably concerned.
Just the fact that he bothers to pause to see if the coast is still clear makes him a master thief compared to most dogs. That said, he's still got nothing on the queen of dog thieves, Lucy the chicken nugget-stealing Beagle.
(by Jonathan Corbett)